So yesterday afternoon, i took three tests. One .88 cent test from walmart, one blue dye equate test from walmart, and one FR curved test. They were all faint positives that showed up withing the testing time limit. This morning i took another FR curved test that still showed a slightly darker but faint positive within the testing time limit. Well this afternoon i took a Clear Blue Digital test and got a Not Pregnant result. Which tests should i trust?