What Are The Side Effects Of Solodyn?

hi i took solydin for (acne, pimple usage) and i remember once on the bottle it said don't take if pregnant or might be. but i wasnt planning on being pregnant.. and i took it 3 times this month.. problem is now im getting worried. im a month and 2 days late on my period..my last period was september 23rd 2010.. so i might be 4 weeks? can it affect my baby if i am pregnant since i took it?? is it to early?? anything i can do so nothing happens if i am??