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Dr. Andrew Rynne
MD
Dr. Andrew Rynne

Family Physician

Exp 50 years

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What Causes Missed Period With Negative UPT?

Hello had many questions. In november I had a light period on the 14th it stopped then started back on the 16 th then stopped and started on the 18th for 3 days heavy. My boyfriend and I had sex everyday nov 22through nov 30 unprotected. My period never came on until dec 20 and only lasted 2 days then stopped and a day later for 2 days it was very light pink enough to just wipe and go. My breast been tender, very tired, tooth aches, lower back pain, and lower stomach pain. I took a pregnancy test on dec 19 and it was negative. Not sure what s going on? My period usually come on every month on the 18th never changed at all until nov. Please help not sure what s wrong!!!
Thu, 5 Feb 2015
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General & Family Physician,  's  Response
Hello,
Period can last for 1 day to 7 days, so you need not to worry about your cycle. usually 9th to 18th day of cycles are not safe, but it is not always true in every case. So you need to take protection while having sex at any point of time. usually pregnancy tests will be positive after 28th day, but in some cases it can be positive after 35-40 days.
There are more chances of abortion in initial months while having sex or by any kind of exercises, so in your case that may be one of the possibilities.
You should repeat the pregnancy test and if it comes positive, You should consult a gynecologist and go for ultra sound, so exact situation can be identified. If the test is negative, just chill and take rest for some time or take painkiller to get rid of you toothache.
Hope this will help you & you can get back to me anytime.
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What Causes Missed Period With Negative UPT?

Hello, Period can last for 1 day to 7 days, so you need not to worry about your cycle. usually 9th to 18th day of cycles are not safe, but it is not always true in every case. So you need to take protection while having sex at any point of time. usually pregnancy tests will be positive after 28th day, but in some cases it can be positive after 35-40 days. There are more chances of abortion in initial months while having sex or by any kind of exercises, so in your case that may be one of the possibilities. You should repeat the pregnancy test and if it comes positive, You should consult a gynecologist and go for ultra sound, so exact situation can be identified. If the test is negative, just chill and take rest for some time or take painkiller to get rid of you toothache. Hope this will help you & you can get back to me anytime.