I Am 22 Days Late My Last Period Was In

I am 22 days late my last period was in feb. 3 and on that day I had sex. Before that I was bit by a dog on Jan. 31 (the day after the start of my period) and took an anti rabies on feb 1 and doctor consult me to take an amoxicillin and when I took it I got allergy and was brought to hospital on feb 2. They inject antihistamine and gave me loratadine for 4 days. After that on feb 25, I got my tooth extracted and the dentist gave me clindamycin 2x a day for 7days. that was a week before my period should start.
Could these medication affect my period or I have the possibility I am pregnant?