Could i be pregnant

Netta.

On may 2nd i had unprotected sex and used the withdrawl method he ejaculated on my inner thigh close to vagina i waited it out my discharge at that time was dry sticky now my discharge looks like the pic is this normsl disharge or not? Also my oeriods sre inregulsr the <a href="https://play.google.com/store/apps/details?id=com.glow.android">glow app</a> predicted thst my period will come.on the 18th this mont but during my nipples are sore and my stomach has gotten.a little bigger could that be bloating ?