Sign of twins?!


Good morning, so I forgot to grab a cup this morning but thought “what the heck” I had bought a large pack of strips so if this was a waste whatever. I already got a BFP on Wednesday the night before my period was due with a FRER but have been continuing to test to make sure it stays dark. So, I ended up dipping this one into the toilet since I forgot a catch cup and it came out this dark! From diluted urine. Could that be a sign of twins? JUST over 4wks I estimate. Does the hormone level vary by then between Singleton and multiples?