My last period was on January 15th, it had been coming on the 18th of every month up until last month.I had unprotected sex on the 26th of January. He did not ejaculate inside of me, but he did come and a few minutes later we had sex so I am wondering if residual or precum could be the culprit.Last Saturday, I noticed that my underwear had blood in them. Enough to saturate a panty liner but not a pad. Ive been having bleeding, not light but not as heavy as a normal cycle... some moments its brown and some its bright red. It is stressing me out, this stopped on Wednesday... it is now Saturday and I am having a little white discharge but still unsure... with the exception of last month, I normally come on on the 18th of every month which would be this Monday. Help please!! I have no other pregnancy symptoms besides an upset stomach, My anxiety is through the roof.