I use the birth control pill (Low Estrogen) and have not missed a dose anytime recently. I also skip my periods with the pill but sometimes I will have irregular bleeding or spotting even when I skip the sugar pills. Stupidly, I had unprotected sex one week ago today. He pulled out but later informed me that he came a little bit in me before he could. The next morning I noticed I was bleeding with thicker, dull colored blood. Today marks one week since the sex and I’m still spotting a bit. I’m sure I’m just paranoid as this was my first time having unprotected sex, but I’m worried that the blood was implantation bleeding and not regular spotting/period. I’ve also thrown up twice this week but I’ve attributed that to bad fast food poisoning accompanied with a low fever. Could I be pregnant? Or is this just normal bleeding. My breasts aren’t sore and don’t look any different.

Please help.

TMI: Photos are of spotting this morning.